In certain circumstances, Spring Boot's default web security is ineffective allowing unauthorized access to all endpoints. For an application to be vulnerable, it must: be a servlet-based web application; have no Spring Security configuration of its own and rely on the default web security filter chain; depend on spring-boot-actuator-autoconfigure; not depend on spring-boot-health. If any of the above does not apply, the application is not vulnerable. Affected: Spring Boot 4.0.0–4.0.5; upgrade to 4.0.6 or later per vendor advisory.
References
History

Thu, 30 Apr 2026 14:00:00 +0000

Type Values Removed Values Added
First Time appeared Vmware
Vmware spring Boot
CPEs cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:*
Vendors & Products Vmware
Vmware spring Boot

Tue, 28 Apr 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 28 Apr 2026 13:00:00 +0000

Type Values Removed Values Added
Title Default Web Security Misconfiguration in Spring Boot

Tue, 28 Apr 2026 04:30:00 +0000

Type Values Removed Values Added
First Time appeared Spring
Spring spring Boot
Vendors & Products Spring
Spring spring Boot

Mon, 27 Apr 2026 23:45:00 +0000

Type Values Removed Values Added
Description In certain circumstances, Spring Boot's default web security is ineffective allowing unauthorized access to all endpoints. For an application to be vulnerable, it must: be a servlet-based web application; have no Spring Security configuration of its own and rely on the default web security filter chain; depend on spring-boot-actuator-autoconfigure; not depend on spring-boot-health. If any of the above does not apply, the application is not vulnerable. Affected: Spring Boot 4.0.0–4.0.5; upgrade to 4.0.6 or later per vendor advisory.
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: vmware

Published: 2026-04-27T23:34:51.422Z

Updated: 2026-04-29T03:55:41.205Z

Reserved: 2026-04-16T02:19:04.616Z

Link: CVE-2026-40976

cve-icon Vulnrichment

Updated: 2026-04-28T13:54:57.821Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-28T00:16:24.803

Modified: 2026-04-30T13:54:12.847

Link: CVE-2026-40976

cve-icon Redhat

No data.